smartbotic/lib/common/config_defaults.cpp

#include "common/config_defaults.hpp"

namespace smartbotic::common {

nlohmann::json applyConfigDefaults(const nlohmann::json& config,
                                    const nlohmann::json& config_schema) {
    nlohmann::json result = config.is_object() ? config : nlohmann::json::object();

    if (!config_schema.is_object()) {
        return result;
    }

    auto properties_it = config_schema.find("properties");
    if (properties_it == config_schema.end() || !properties_it->is_object()) {
        return result;
    }

    for (auto it = properties_it->begin(); it != properties_it->end(); ++it) {
        const std::string& key = it.key();
        const nlohmann::json& property_schema = it.value();

        if (!property_schema.is_object()) {
            continue;
        }

        auto default_it = property_schema.find("default");
        if (default_it == property_schema.end()) {
            continue;
        }

        if (!result.contains(key)) {
            result[key] = *default_it;
        }
    }

    return result;
}

} // namespace smartbotic::common